{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "386745392",
    "entityType": "User",
    "nonce": "0xe951d2471245bc074f0f89c117d60531f016e06d5ff6706c70796c8d4984adb9",
    "signature": "0xb8b6d795ba867ad6d30ac4ad7c24b7693f18b68279d82400053a61d12419dc3b767114698531cfdab55d99764d042668a16891cc409d51963ad6c41f840e3c641c",
    "signer": "0xFacA45731f376Ad08B3020679B8e608Cb8731E3C",
    "userId": "234994159"
  }
}