{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8eb698af4565a7f3d0fbab619e4b222d948e841f86f3acd4b224efb4d65d81ab",
    "signature": "0x6053aef4957a160f25aa9640e3ede08aad9a897a357c573465b00025b23fb96d4f66a62a16d03fbd279a4907f21789e0025fcda79ac43d4513d016edbcc2b7891c",
    "signer": "0x91926DabD91E209b3d497e488439a181c3bacF30",
    "userId": "284020290"
  }
}