{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0xa9144adb64d050a7b57929e8d1912853375168a61f74ff553ed380a337b20a87",
    "signature": "0xd3a0165557fc273d14cf4ad0646b1da18eeeb7587264941e5ff76f1ece5bd1557ef6d6beb7204c2b4c36ed6a3888ceceb269bdcc000e9d6694bf4a1a75c13add1b",
    "signer": "0x09Ed944A6653804DF5E864d5240c837F643E2c0F",
    "userId": "214509563"
  }
}