{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "960158487",
    "entityType": "User",
    "nonce": "0x5cebef3a2c37aee24c4f4f6d872ad2798687e5cae35a104dccc0927838d57cab",
    "signature": "0x68f4cdc201935395e9857a429298f7972371bc6c2cf821436fac46cd5fbeb07d67f2a476bfbf93ddfa1d560456383738b72f3b95709256c4b1f9d7739af10aa61c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}