{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe6f9f47047546a67b54255bba0a3cbdde0ba0ce4c07faea7174b2a7404753ca6",
    "signature": "0x17b3a3f984579c7650130f195064efdf5074be5f505ad60b53d95f1fb6eea912487783522cafc8817dc23ee54fe327fe8ffdedf28c6c8ea471a9509b9bb7a4331c",
    "signer": "0x80A62815c36326032EF08Fc00BD673701300bfaf",
    "userId": "301183414"
  }
}