{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "668",
    "entityType": "User",
    "nonce": "0xe5d958332c26b2b9cf259af1e9294b920c425ed2e4095c0dd0f419ada2a7d6b0",
    "signature": "0x46d752224a456c7cf96019f34a65b186c7de1d35f0cc24791446f2b1a9a827ce5073c255fe75a937f5d535aa6a75edc5995a53addf14565ee94595cb787ace5d1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}