{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9d81ce5c159f0e15c2dce9a22a5ff2560ce43c48249fac3984e4054534e2da9c",
    "signature": "0x5685031deadea3a261161eae377dc72284ce476182aedebfd68bdae31e1ad56e650fea85aaffc5e65834902885d4c14e7a41198ce6ca4aba41a8f46c4f2df0a71c",
    "signer": "0xd3De8f71FE55763e42be9E27D8C647688fec3d55",
    "userId": "659750957"
  }
}