{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74667",
    "entityType": "User",
    "nonce": "0xbbc573fa9de45b0fe44495b658e2a924988181ec285af511ffcd26d2f9fa4fb5",
    "signature": "0x1e5e275396cf32ffe9886477f01d36a751a0124781adc3dd7e1b0a2098fb60e673e3504381733dff96c8b0d56ebd49ff7ebec106c5067374dd735e061ae790871b",
    "signer": "0x4cFd9635b74edd6514FBb781B9C920be24A36AfA",
    "userId": "376830101"
  }
}