{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325172820",
    "entityType": "User",
    "nonce": "0xe986e14fbe016df48a4066d3ab0b1ee11df27a1b605d637c36291e64b95ca6da",
    "signature": "0x6566eb5615d4ac420c7716c91674614b7b703992c214651924688782a209221e534ad84a382337a951b1d9c9b406859db4817fd45ecc700ff5f05f1c52906fc31c",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}