{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27733",
    "entityType": "User",
    "nonce": "0x39b36fc01b3fc2a3cbbc87fe53f10a4d0b81fc302dd35bc5895681346f3e057a",
    "signature": "0x4b80079f197ff4305e1f82bd88f27c7310f1317c989d812044feb05b6f08798b4f575518d30a80bec6a0d3e873a93ab782ef120fc4d7b2e3423590890491f0781b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}