{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "975218829",
    "entityType": "User",
    "nonce": "0xfcb757a78943a856ddeef9c6a692523a944601c1ae17dfdc059925031bbe7541",
    "signature": "0x6188590276a8a34f13ae98fc7cb8add699ee87bcf762a763a967fed7647a542d56f0048994d63249be89eaee4449dc761b36e9a8685048d3f548729de29da55d1c",
    "signer": "0xb0bc7585AC84F169814851A3C22d8d92D133337F",
    "userId": "267657235"
  }
}