{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53765",
    "entityType": "User",
    "nonce": "0x584ef62fa38ec71f358f21f151e0f4f5b2aaf998c56e0e1e8291ab643c9b46e9",
    "signature": "0x71f0d8ebc3e7442bb06f9b9e82cece2b4c254c5de4cab42e23d630f771dda9d96b12ba9610f4c8c93c35ca07ce11c0404b3e44700c44755da03c15a2a6006d151c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}