{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3bfa64d795e8af2076c1c6c6ed10368d50b11ea2b1d1bf39824a44c5a5047e4a",
    "signature": "0x4fc95f3064a6eb6faafd6e3e181dae1eb01b232a73452ca09071465516f818b257675a761cceea98da7e497b874ad2c2fa941ecf434a017cb7f6bf6670f59a631b",
    "signer": "0x0E1419Aff1544Dde5c4eebbCfA208Df83ACdE40A",
    "userId": "564626302"
  }
}