{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x88697c3cb8813e90a7a2b3f55741569b2ba298db2e91c07aa53ebc67f4fffbfe",
    "signature": "0x64bfe05c2fd533a24cd0a3a0ca665e4ea93b3bb0c847701eb018609b4732dc0a0580db6e7f01eac35e6473be6941ad95300941d3dafaa6bc4176cb87cf90a8381c",
    "signer": "0x1Ed1f2058c8099D545fF3482b71e7aA41429C008",
    "userId": "347815481"
  }
}