{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0e8451b2c32a722d4da34dc6980f7fa61f41738b075cc7a1683ecdf69cc50436",
    "signature": "0x8d875e87712b3f4edd25578c67e1c91e7c2cb4a5b816c0600f4591a8e7adb06d206d6c73840ac5e094f22c50e18ce1fa1eedaa458aa57dbb43a1410d206df6511c",
    "signer": "0x84f98e038F1EbF2458c0D382005a309cf7dDedaA",
    "userId": "223709398"
  }
}