{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xecfa6b3af7380c504e2e5f64c3e503d461caae3361c0fc140e64a7e50366174c",
    "signature": "0x15202903a3838f1105bed17a0fd1941928eacc67c998efc72e744e23114c6cd21f0b5c9c4abbf1a08b59fcaea8018c985689cad673c03506068d1d4068f582ba1b",
    "signer": "0x30F06DFdCa35Bb8B2d6ea92Caa28aB89441b5c1e",
    "userId": "812448115"
  }
}