{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "21894",
    "entityType": "User",
    "nonce": "0x82fd94c4f3d21bf86484110d2784fe0cc38d787df2bd03047defc7e34e30fe64",
    "signature": "0xa47f59c926438672d93b2c01e211229718afe5b60e4fad9190370cc5bfb43038157daffeabf97243e1e44dd1b8e21a359bb5de84096eba45000637900dc4602e1b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}