{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe3d93b147f15c95417c75bfe7e437c8597e321b4088e7c02bd9d833e4368b8b4",
    "signature": "0x83636d72adef3dbe813966d671a45ed3d7a7a53c120d27139e199114fd9ff638011de34f00afa2f2530854ed1120742e2a3a7643b8fe1d6cb349307b32c8fd6b1c",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}