{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152450",
    "entityType": "User",
    "nonce": "0x0cc6cfc21058107549d42276a6747a0b93c4772f1d4207564c020d2fe0891e9e",
    "signature": "0xc41e927a77457099c23f9291aacbb71e8a4f646df6726bc5e34b252561f277b6323ea2425688a8891d5bc840afa6496116c48526ba3a5b2aaee240ada910f8bc1c",
    "signer": "0x4f7F6D917a2F3D961Ba722a09F72f01Bc350a631",
    "userId": "4350574"
  }
}