{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3144",
    "entityType": "User",
    "nonce": "0x78662b5dc76ada928c984967629034a6eb8384e259e24af8e310a269b264dc45",
    "signature": "0xc9f10a0564258dde2971e2bb44078337420ea613c4bdce05f8c3d9fe3a2f913b7298e0cf9696eb023953db97302541f099e86aee9acb0e008bdabf1176de20111b",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}