{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "39768",
    "entityType": "User",
    "nonce": "0x1d5434f07dbdae14ed4d928a1abf9592a2fcea34028cb1312298e6d6665465c1",
    "signature": "0x0784242d1727c3c670b91feab51e2e32d149322b796bc81c7703c33a4a597531009941b8226f66223d807c6cab2acf306ea7fadd76fadefbcbd05c03ecd363501b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}