{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdc56d9e6059f7ae2df4817a9678a273c8355fe70a79965645b6bb0e91487bc7f",
    "signature": "0x325b12ba387cbb6bb1bf203dc9dc2b9f1638d2a7d9c363d3bdd3806949ae403a18ea2b62626de310f3681a1d73e6c6bc28ac965d8a5a692aaf050184b77bf6341c",
    "signer": "0x5500cFa1db7064Df41fDCBA32c552371Bec5Ed58",
    "userId": "751556036"
  }
}