{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0x5800225f43705f1bdbfe6c5daf3c53d32d06bb7a4c108cc2db8a150023fcf5a2",
    "signature": "0x2d8468a189a225fc799aceac2b27d124fbaf4249aea3c1776c77ea60354104df26d015f5d3d733f2667eef9199e09ba47f997b5f90b83a8ff286a28b38dc57b31c",
    "signer": "0xAfE04b3A47505816aD72A3036422AC553C1dFEc3",
    "userId": "515307498"
  }
}