{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18122",
    "entityType": "User",
    "nonce": "0x7cc8a2d00d43a7b21432e736747002d68bb5d97dc41b6a9e32fc10042faf56a7",
    "signature": "0xb609dfb5c2cb568fcf376e6dcdb5df0ef016f0c1f755920f3d52c279fc2ce8f85b4d1b2ddcf1f6901e304c4c8d22be206c17cfd7eb91e731dd5bb5b949eedf5e1b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}