{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0x4e5f0e82e81ee9d06ed1693a17931a820e2801f8fb113e2997af0c0ec8f88395",
    "signature": "0xf5b5a057408b928fb0c87d0143c69fe32fb8afdb55fa998dfdbd3e0c4d5d4f38315e677bfbd1a34c2c10490223b1b6489f09298270cc739a35277be7390a40191b",
    "signer": "0xbC6F2a03a7eF7517ed79dEA4d42b300BBa79f793",
    "userId": "515207100"
  }
}