{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64442",
    "entityType": "User",
    "nonce": "0xb3094187cba67dafb50055afa6e35e832c7b374e1c2c938804e32ea747bdd217",
    "signature": "0x965524ca21fb06cde1b10a318c650d37bcb6ea63c59e75f668785787c891756b08f908034384172ce4d8547127c2b60fc5fff8efc5191cfa04c38d40af94f1481b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}