{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71862",
    "entityType": "User",
    "nonce": "0x3e99c47a245be8902b5064115ee7bda4e2af187b893c8aebcf566096893cd4cc",
    "signature": "0x77a1c6121ed2462601f649582b9f9196da9ebda6241437ba45abb72cfc76854c18518a3be7a6f5d43a163f743da77c482026dfdcc8fcf9a92f520d6969041ada1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}