{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9043a36b21c22c0a00ac7ba88aeac20c786704adf460f503bf27afca87aa07bd",
    "signature": "0x9567397266990768ac9a6bc9521949742ca98bb767faa78604d762d635ebdcc609860386b1b502feb7794ae7ce234a0c5916e8517718b1667e446b7a8ba257811b",
    "signer": "0xC1C66590D148A8De13FF8a6cE8ec8a9D5FAd44c7",
    "userId": "937873299"
  }
}