{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4a789c4e455f625b600f9dfcf7b558f777dfc95a0833f48425e8ebee9ae08406",
    "signature": "0x0dfe19b63f5bb50df4ac524103acbe146bd483193e3a0a4f650cbd2e9b9738f73d348fd6793e65631805ce4ecae202ffa565b8f364a2dc052c361622908dede01c",
    "signer": "0x3B7dCca3b588d59c27066b2110cea8aD7224E7Be",
    "userId": "60529979"
  }
}