{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831774733",
    "entityType": "User",
    "nonce": "0xb33478204c87d38e5e70440a96ca12200c1ecbcf161e89ad8340df82638fce9a",
    "signature": "0x9cb7c703799b806839ea0dd43e9b65ee1dc38314dc81918169ac49e74c22b0223a5c77671bc90d668174ea70b65cc551f4ac91d7f9af289d022c5c42600d7a731c",
    "signer": "0x4eA1c2f666055Df54e4dFb8F26382Df86383E645",
    "userId": "873729006"
  }
}