{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "464701292",
    "entityType": "User",
    "nonce": "0x9b451caa0bb3052d7ffe6ea59d5610808f8b8c76fd97d6a54129c57c44f6e9f5",
    "signature": "0xdbbf53f46cd94209a75c16f04de7bf7dea7d93b829fcd5459fe52e1ac412c66c1d588b5c35bdaddc3a5ba95fd91c7b0d31d78ac6de19554062014a2aee18d3651c",
    "signer": "0x0168976438910D2f5330323a0d0141Fb4Af95032",
    "userId": "317847"
  }
}