{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x2ad997ca54d2272e02684e7004aaaa981f0c258f6abe4929f6375f4e7f540035",
    "signature": "0x0fdd1b17127269639ed1af51c7a82b20d724fd31345e2b3deca05d185a06007c0e79ce6ec9439f3e458a24ab0403523c88b3b63b6639b6254e1d7002d6aec7131c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}