{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2af30378b971827a14ab00ea025cc75f0f58bdd704725e4103e1a1f0f0f25052",
    "signature": "0xc2cc8696a4aa4a6414a409838d17999ff564f1f7a88b63be1c01cc0b72b8c320149e35e999d9db4e0ef68eaa4e9c0e8fc0062239b09355098820ec74644d22dd1c",
    "signer": "0xCaFbadfD1CD8f17092A6d143391eA3E2C0234C58",
    "userId": "223652420"
  }
}