{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155213",
    "entityType": "User",
    "nonce": "0x1b9f7f38cb0bf1548907a23a1bee54d08d18ae0b2d7bfef2e610758f6283dc83",
    "signature": "0x1c8763ebf5508aae1bf1d407fee982c01ce7fbfa036ac32c4671335739996a1820286c67b53db87e1973243d94f7fdf3e9a03ddf5fee0ec9a7848ea1ec9b33081c",
    "signer": "0x9861bBD8DaBC2D1197dB75a1309CcDdD9Dd03354",
    "userId": "622722130"
  }
}