{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x203645526e4663f26137768687294e40d07e3dde961a097baf7b48fac57c3b50",
    "signature": "0x320a34b7e67f457fbaf698a822d4675ac274c3e39607b36d7938cc8142c12a6648d8a27221e985b8e878db117dbd70ab8f997e5d9e177a34fe73765e7aabb10b1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}