{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "189738327",
    "entityType": "User",
    "nonce": "0xdaa2947a7603767f853fef39856ca319123b7eb9d88f322f960206823d78d7b5",
    "signature": "0x00fedd4848d4d09f92b517670d46d49310c762366359eea112013e29079ff76d150eca60905e8ff108357b6f936b49189f23f26ac9e7a18b121ab2fb129dea381b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}