{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "752389",
    "entityType": "User",
    "nonce": "0x381431faca195421db2701735e0d08a50e6308d68a02446e30f7fd3478ff396e",
    "signature": "0xff696618d35842b77a0e496153ee85e0a55ac3a013d223df7659ad0e71e7183c608e0f0a97f0baf2880c1ce0c7dab985b206b634dc53a5ca4c4e995a60acdf621c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}