{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa33e47321a0f87254e27436d2e465596cd6373bc5556007555a26ee74bfd3276",
    "signature": "0xe48f742f405484ac0a33a7020bb36308400e7af291042608fc2a898d3f4b82f222102622618ac6615a7d1eafbaec802b9fc6d93ddeb43c7341af1c290b16f9b31c",
    "signer": "0xDa4de68E0f6b5A682717Fb919d5348D073657811",
    "userId": "787098903"
  }
}