{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1427",
    "entityType": "User",
    "nonce": "0x0cad44d26d924124d626a46b6c75fc32c42e8ecde583ad256f5800f6f9af6900",
    "signature": "0x4657fb83b1d8daf682c4b0a0e079e33a61dfef8f0dd6110b6a0460c92c8d403f49053bd75b73b4c441867e88efa7340329efdee80e21895d28e20504ab2343961b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}