{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171892",
    "entityType": "User",
    "nonce": "0x94ed750f368e91d9239521f24c2ef830d14b1bc1e6784099d87fd56a040192ad",
    "signature": "0x3d0d7a96494e23f72613f5519625f9a2f061ae2708fd22a8b96932ab174bebb222111fd1b0b33e55d92a814dbe3b0c32b336f0a52e9276987a002663bb8357621c",
    "signer": "0x044FC5a5dDb09Fd969Ac4aa606CddF360FE384dC",
    "userId": "144585121"
  }
}