{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54432",
    "entityType": "User",
    "nonce": "0x29ff3bf07d031bb7defabb8a05a6af051c5d8f64e6511422bb20f75c30e5c666",
    "signature": "0xb3eb811ba670ac14e3a75b008b9180727e749e5a02213fd141138febee1b90a00e044208cb4b5aae9fbd7e92bdd813f53060857ab86ebf110701b072f724ba1a1c",
    "signer": "0xf95969e92BFF8C7cf42923fABC371C2D2B9D2f56",
    "userId": "614520593"
  }
}