{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "957488166",
    "entityType": "User",
    "nonce": "0x69315e4f8b34aad2eb2273a10be32b00bdbebeaf2f7528c95fdf2f4ec912dd3f",
    "signature": "0xc51ffcccd9d813219d48eb02cb8d868a088953bcb3a2ecb7db89013ee65a51c703e59d3704126aa20e09ccd536c1743bbece5d8dd8d9aa2d1d96883d2df9d4431c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}