{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854614078",
    "entityType": "User",
    "nonce": "0x2ac6c535247fba7fb190dfb59cf881d629725a3ac2b6a1d192df99e1d0e587a9",
    "signature": "0xda189ea75b2031ec807d3a56a9ca138981ef127c4e97e039372e36014961fd1f462bd75c8d253958cda0594fb817cf2471468a80a6e7e5aae0d64f65870c70741c",
    "signer": "0x9e61DE1c33f32408C11bCA4682c799044F51912A",
    "userId": "499136071"
  }
}