{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "271997",
    "entityType": "User",
    "nonce": "0x5337526aa7bc6e48e15d8eb938676eb6ab0f0c1279794c05ef302e5786c90e58",
    "signature": "0x15aab4765c1de3b791a5a28baf7a4384b815d6ed71824e6bd8f18c4e3ea7d0e122f22f151e7a87d4c7c5b5e0c313a3278a73b44e81239c7047ef7f6dbed852fa1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}