{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "696716320",
    "entityType": "User",
    "nonce": "0x155f5ec891fb2be11620ee53f95c3c8d110e751bf60095b676da2e845abea64e",
    "signature": "0xa4c562b50f976f9d22639f6bf67508b29349e99e4cbae6f989ad85510ff2a5ef307e2fdef0807411b7abe91926c6f2f44f7a01150fe0b0baad8c4458d89eb8161b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}