{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144585121",
    "entityType": "User",
    "nonce": "0xafb625e006c025399a2f5ef8f07768079f913b2f5182e9c7d0548711732b0edd",
    "signature": "0x7ae38a65a03b57c47e726e20b84a1fb8ff0f79fcd09deee6a5ef5f637ea6a0186ca7140112945b5c483ddb083ad8afe3259dfa3c05e2bc234e3d2daff6ef26781c",
    "signer": "0x90A9ad55aae6A3ac7D73EB5114a90ac9AEB777F7",
    "userId": "815799751"
  }
}