{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xd57c8a045d2d1bbe96dfb419a68749fdee804a03d2fcde88d0d185e38ff7baad",
    "signature": "0x4e376efb549e402eec3383e035101c8a512031401c88f6078834b6c35cf1bfcf3e55f484cdcc1591bd334d967d5facea283b53f4f8a3d204b2a00dc1257ae5d41b",
    "signer": "0x7a991F28f8c946030bE26Eb8408414771247985d",
    "userId": "514559071"
  }
}