{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8dabf671a8a1f18b4e51d4137587a33378000a4665cf4c915e943b0e426f7c7e",
    "signature": "0x3b676cba9bdb8a2e33cbda527c09d685f4fceaf4028096ea45cc0acf849f584a22a5aefd3570246bc9e0beb7a2a45b18af89e80f9ccaa17180ef15e7a886e83c1b",
    "signer": "0x734a00137DCDA6aA303E1be6dBD3f9F1B9a989A9",
    "userId": "293311836"
  }
}