{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xabd28bab8ef4439622ba705af06bbb0d7e9728634daf5851a3b29edd888ed6c9",
    "signature": "0xa081bc95fba8130f9fd43b2990c6b03d2a8aba3be0cb68750aa438d30597fe65709fefe0acb72cc9303c2ae7bff05390fd247e8ca7b119fb15286a931fbadcb71c",
    "signer": "0xb29Aa5505Aa4cbB355fF711f0750e76506714848",
    "userId": "733746758"
  }
}