{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234141",
    "entityType": "User",
    "nonce": "0x2bbfc2df422966de833c210af7959285f2e45d92948cb51f24a60776e13d13fd",
    "signature": "0xec763707e422b9df15d1c80c3b9f10c3da06eff3a04101e776ba2d806d0cacea3b05839a24fcca8b1307e7372bc1937be1b6b62bde673fcd26e054bfe311fae81c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}