{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15980",
    "entityType": "User",
    "nonce": "0xa20610682decfabb54f2432f5dd5afde6fbd1dde2ff677088b8deebfdfdc00b1",
    "signature": "0x4200479416ac2871cfd10efe04e7b1721226bda24591a2049696e4240c1d07cf10b0fe8a6550081dc8cc485b388d98ee6aeba473f2674e403276de259c514d351b",
    "signer": "0x5617e33979Af319eD3a9a6bFF820d69b7e8877a9",
    "userId": "171261"
  }
}