{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "169637",
    "entityType": "User",
    "nonce": "0x2fd43dcfabdbfd603c060d47ea9481f362f3668aac6581e1d0cf1c8e4414f826",
    "signature": "0x008d0d58bb5bac3658cb7b381cc0c65ec0c0a34f85d4fb2ac021b01597f7211e6402ecfb3572b345180bb8e465af1316bc9f14b69f9e750b893aad279a369b7b1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}