{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887242445",
    "entityType": "User",
    "nonce": "0xf04db8f984a4ffe28dda9a30e4e38cb4dcb6f919b3a5b0b1b97fbf4a821bf302",
    "signature": "0x225e60a21b6a1b425aeaeb430727371aa5916ad49cbfd58345bab01fb54b104a6782bc88382b2d49487621a6e4c560f8c36ba8d1d346a859e35429804f1f82e81b",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}