{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc6a01c4f53f6c19e421e4de760a4afa67109826be808c0fe0798f96dc57b6768",
    "signature": "0x7681d95081153a2362770e102f84d0838d8f8f16363c7d3c1556e6c7ef6419963d8b2ee1848bc532f579ad1df262b41938092cd12f27d70297154ba198242f8d1b",
    "signer": "0x36d561a0A85f6dd1a94f699a1077dD537A799687",
    "userId": "214954322"
  }
}