{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66185",
    "entityType": "User",
    "nonce": "0xb416a7d0cf0ccc12a77b2d19b2c7178d210dd280033026f0894ccbb0a67c8721",
    "signature": "0x9f5795ab35d851b39b4537c21fd97406f79b6075d942f2f04612a3f60eeab64f179331367ccd9d2f7d2d4038720c9efed2e25fdb849d2115a1c3f48bdc2b5eff1c",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}