{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12615893",
    "entityType": "User",
    "nonce": "0x5e738b4b20001b920c95fd37ddba437109ecc37c4f36dde7bf38287add6800ae",
    "signature": "0x324edd09816d91f0dfb5452741d81b33cdfbb2cca15446f16c1b148f9e8aee6d7c6d55abb7d5f3a5c9ce5af0dc8547ddfdcf7520b79ea83f6d647d7912565a841b",
    "signer": "0xAf1f176E32866fb97d822F6f5222061aF11ef652",
    "userId": "954117045"
  }
}