{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964899801",
    "entityType": "User",
    "nonce": "0x90bd4b064cc77f3ed4417fff916bee56e096fcc2a6c53281dbae3836dcf12410",
    "signature": "0xd074b19076efad2ed8492a275378dfae16a116b9cac7c0b57e1ef9346361223c7f981c8a5b3906210a759bd75f9e00da5cfa929a99454133ecb4cd8453a0f5d41c",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}