{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x82860a2b257e7581a9402865e9574b891536b16323cb668964940dfdc2e75801",
    "signature": "0x96553b86d320cbd236cc385a00870ceda8f3940a00517ed0828444fbbb5861b36f44e5a78b1c3acd7cb9016bf45497fc303b4e830b057514e6e9502e36a498cb1b",
    "signer": "0x19c2A1f9154c011c6A9C2Ae666c46AB9951bB027",
    "userId": "783282564"
  }
}