{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x12492015c3936a417bb03f48323513be6dd9f7da12ad377e707ca1372619391e",
    "signature": "0x3fbb8935f6cb3ef2c164542ea10c5da3b6d379fd74e6529fa009376ee24085a532409b46f29d9d8accb8b39d351c1c1767b18ef8c8ef7b9d7c68b04e2331f8ac1b",
    "signer": "0x23Edfefc8d492d2d9b10A5ECf1F60c1eb77c6d2a",
    "userId": "706973233"
  }
}