{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1415509",
    "entityType": "User",
    "nonce": "0x3f0b9eff2bdd3a1f3ea3688840366fb091e7b218557edbd70d8c035de5d5c621",
    "signature": "0x7b4b300635132565b1e34bee6bf38b59622f9972c739403b9d228eab9b5e99765d8b2ff1229ac267ce522ab029e4bf81d73e379a3758e2f10b757c6cd2f38df91c",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}