{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "772682384",
    "entityType": "User",
    "nonce": "0x94b1152148524bfd7436989565dd087b9280413d671a1ceb3a0ff2469d6f1ee6",
    "signature": "0x47d478b01edb2e2e290fb9330840aa9df0be90020a72fa09279ce09cdb5965d23c57a19bee267f76c9451f0f7ba80b2a27ba123dc0ab571266c15473403894641c",
    "signer": "0x31cE923A8b73598247D8639D61384308dAB45c94",
    "userId": "338949331"
  }
}