{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "162830",
    "entityType": "User",
    "nonce": "0xa2989e749343d0c3344f66159461f9e799a6f8fd44f316c07199ac0f416d1116",
    "signature": "0xd365b6018f1333b41e15c26af32acd9c87768b9789156172391dec94b1076d877770dffda3f593a6fc1496131f851de320430083d5e61270a19aca65bc56c8f91c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}