{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66221",
    "entityType": "User",
    "nonce": "0x593726a4da4d3913bc86a2db88e36bb5d04c2b1083766517c7db6ef17499ec11",
    "signature": "0x6c8ec9fabefa50784540a1897324eca1e2a465b1f3ffd6257db6cbdf101837e34ff547020e4c4b10f3e4f1e39373d8c2179d09a5ff1f644bc12f11caba51af951c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}