{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334539",
    "entityType": "User",
    "nonce": "0x2b61e8d2a49d27c0fc08dd1e2fa830d8cdb12ac20b3cf5f94e79e102fb316cb2",
    "signature": "0xa7a38c9209e24e31e752765ebad9d0af9c287b9c1c7fd73b4b71ac76c207f61a0837a77f15b3cecd48d12846a6cf3bc03e9b9f2e22a76cea074625b95b6537ab1c",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}