{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54906",
    "entityType": "User",
    "nonce": "0x04cd778b508986bc455c7c586592c889fd7f6d8dc6c1284d71cc840be5f43f4a",
    "signature": "0xf71b1f3a94252819a84e0bd5daffbc259e57b05a3862174c6a94ab00e8a0c5545d48070e0ad905c5e036a9ea928f4e7287f06c1e9af2acbf89631d1c81c9380d1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}