{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x1e34e3e880f25370ec3787b12b80c07844796d71ed27f685e4f3a11f76ca289d",
    "signature": "0xfc6d6c20a5087d3add4cb40288ff1e9d030697d1bbafd6a12f5a23e8704c604c466e7fd94da6a97348d1f896ba13ebdb1d464e96ca35e56164e6d153f2a5f15d1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}