{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "618025803",
    "entityType": "User",
    "nonce": "0x8e021f6273df0abf3b14560ad49c93c557165b48a6e4920d207c44bc08ccdd06",
    "signature": "0x522550abb43b11a1242285f12149361a2dbbcd07572b6ad34198fd1acbcfe215358ed5003297afb09088d9f59bf232477ba436533320e42563d19c835bc3f45c1c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}