{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334036",
    "entityType": "User",
    "nonce": "0xdba5ac2c57a6b20485de3b309bd1b77090a866af8e2c0ae1391575e3ebd4591a",
    "signature": "0xd7c77a775a69e7a69ff4cdc3b3aae960983c95b19d494003a0eb7765fd4b996875ffe756ae1368ef648f81cca83968b4aa67e5aa6684eff00088f86cd7ca4d541c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}