{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xad351fb8b80b769c50b191494c60b4b32bd6c65f4d2aab538d54fd746a61939d",
    "signature": "0x8dbc83ae6c064e8e7711b606eef50c5e8da497a4e72ce97aa08da8e86e6074d04b1bdfdf25a3822abb02797f9811b54c3f21f5ad2131c71c0db4b14c51ab5fb91c",
    "signer": "0x92bD759747e7E75277bF2F662f6E78D68aA0aDa8",
    "userId": "532298728"
  }
}