{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "314182",
    "entityType": "User",
    "nonce": "0xd4fd88ab2558f18c74b93dfd836a03c783abac31e3803a5ebaa6100d8fad0340",
    "signature": "0x213b2d243c0cabdd7bbb28b7aeaf32a770ceabbff5d593e6d9ffe45ae8aeb19c4da3fee2cdd3f623af2a0297a4f8a2b633230e264a38fad5cdf3cb05c1855e131c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}