{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "606296796",
    "entityType": "User",
    "nonce": "0xee16c2701ade104d7386e44cc802d2596d2d988d3d128de9181576ce806263b7",
    "signature": "0xaca16e637ae4d3b020c07f4d49cd8b822e70cd1269ebfa3152364228810cc60056b8077b10acd2a4b3902f062d87096d4ccaabc541065313b8c78b10c1c0da571b",
    "signer": "0x3e45aF44a0a7a5C6A764b80a0019a48196055E2C",
    "userId": "957171232"
  }
}