{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9507",
    "entityType": "User",
    "nonce": "0xeb6108e2675fc3f3b4843b863fa9be7e9c2ff14a0bda802e6e93a2f39d12b823",
    "signature": "0x7e983678e20711c39b1cbea3357f8cc92b18daac01f1add329670288aa61d73723cf18dbe30b2e6bd70cff5efccc7c3933ec4d6f3d712362dddfe3e514c395101c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}