{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0x940060618e0d5a56550023153380e9e8684906a2964048801825dade160836e4",
    "signature": "0x8dafc9e4362faa1ede2e3b5103fc21fcab72bf231fd6d0ed64e6dfb48a81edb2228197fc98e8fecc9c1ba28ffb41e4895bec2266b2b396b4bbd0987a4052b9dc1c",
    "signer": "0x5D4848bCf5c4abA1a0Fdf2B61408c9e4288aDb0E",
    "userId": "305415280"
  }
}