{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcdc73651c00bec052379def9da9f16d2f0ad145d50432cfaeb08d0110665c06c",
    "signature": "0x0133354e691193782257d6ef4f49ed8d97b22071f306e64ebfd114db1a24ef2f73af91764e4c4caa33f6ca2281d63b16dca3424daecbf0de9764a7e77d0bd9ac1b",
    "signer": "0x4530b8B58aeF2F3E7e02da858d92E5880888F3f0",
    "userId": "181748389"
  }
}