{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "242893136",
    "entityType": "User",
    "nonce": "0x89702210b48a81f86d171956e660204fe5028ab592f9ef8104559f961a39fe6d",
    "signature": "0x283cff802cc0e600d2f0cde6402f29be9aa9bcfde3d6b9e107aeec0179cf21b77f92b0834945d668efc9b40d843944236d0ad1a1e7c53eb32459ec42c101d2961c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}