{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x118efb1734718df0bf5e66c767082b373cdc1b3c22aee93c4cf21390ba8ea2cb",
    "signature": "0xb14f85f9bd0aeaaabc45dba3cbfc7394527f26a9660e83635ff078080de05ca961a9daf8add8fc66574f84cda2142a137541728ae2d4b62f782b1d891705376d1c",
    "signer": "0x985F07e3EBDF52799E0035a70c8EC7C9232aE290",
    "userId": "545436003"
  }
}