{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x72d8f5c9efd4623d9ac39b43404f65e1f8d8e12a50ab7f1982daae3f292fef02",
    "signature": "0x646a0c5feb90fdec445c2c54de4da7c7d13e9062d181c0849303c4af5de38d7a615d577490bb8fc5d2efa4b4250f1dc9a7424c09a5620527840e4a931c7451c41c",
    "signer": "0x25F540f6f482cC6017beFD91f6A84255ffc502e8",
    "userId": "683423914"
  }
}