{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65878",
    "entityType": "User",
    "nonce": "0x43a4028db730e519469b7ee0cd54c9b2cc5927754ff3dd8d863a7501b35ff7a3",
    "signature": "0x93562b0df96a69aabf8dccaaa8f9cfa1f86b8823e52e7ab3274aad6e97d4338e761282f5807a43a9ac32949495ef21b0f853d85358ddf259899e52efc190919d1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}