{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108091",
    "entityType": "User",
    "nonce": "0x250b08b8e02d5d8b148eb657b0e3c7c895dc60d99f23e03c3140761abbb33ac4",
    "signature": "0x58be7ebcbcc80740fc3b0d049ca9b88fe1907abb86ecdc6caa2fb0e3d296944c1f568fc388790e60f5aed8295dbaf6188cad0934eeae96cedff9a875b5f95fc71b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}