{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0f9971981fdc3ebb769b5ef236c7e2486aaa4e116b2eac13e726777e7083d9a3",
    "signature": "0x6d9302b558e1f198413de8e90a53331f249bc5d068c9c3c5c7cf3125f6bd2d2329903d8d549c0e162e5bbe8098d6283e5d5c730a90f8d7151a19425ad1a7ab4f1c",
    "signer": "0x9d8bc8C044591B434FEFFF5A4A6EBECdd4074e33",
    "userId": "77927464"
  }
}