{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53021",
    "entityType": "User",
    "nonce": "0xaabe6a3e7ad7f3bb53d306734282fbec84613a637ca6e7f5fce6d2cc6f9f5fd2",
    "signature": "0x8abc3f240374be2bf62d812ab321f51dbf56f05358618401db3cc3fb6c491d987e85ed80b9e7fb255cc9786eff741cabfb16b3b01525c789a74e8f0799c74d3b1c",
    "signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
    "userId": "386745392"
  }
}