{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb342cafc05d48fe2ddd7798ada21246b7e15c194709471f57a97f12eef64016d",
    "signature": "0xbe94132d9ceb6f98c9dafa90fd0ae1f953bfab58685305e29e941b7f9ad24d1a3ba9a9c0eea9e61e16cec538d9dabd690688c423f9382e18a1dc447cd5739f8d1b",
    "signer": "0x587639494E485d5CB220323631409512D66dC081",
    "userId": "113401572"
  }
}