{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "303026",
    "entityType": "User",
    "nonce": "0xa5e35f6edf42f6332144511b8b62a762307a900b70e63fa93d98a8a6cfccaea9",
    "signature": "0x569622a103fb8fb8d4c2a778c891ae06932a594d0597b48081cd2a2ab16093345a31060423dddab5dc8ed08c4b8f214a75629409b6923e50a9e67e0529c69bc41b",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}