{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887297390",
    "entityType": "User",
    "nonce": "0xd269ad430d04089e4eb8ae3a7f65bfeee740fa1560743351b3f40088e6cc844b",
    "signature": "0x542f35d86d4acef13dfd2f6d583428838d9ff05b6de61b6b637eba4d1dbc3fae4e88fbc31e7c8feb940b8d5a5e63198f59dc62e53b919309de2753cf1b2543891c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}