{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107423806",
    "entityType": "User",
    "nonce": "0xf53f87932cb399ce227fbb016249f82fd8202cf5fcce3d617f211c74d9c76348",
    "signature": "0x6020084481e1a397b284dd1007fdfbc73be53ffbc1080dbf4913b50d8ec7e9e57f717029ad54e580a8878b32ded2e076dabf51b0371ed63c885d78800cc86f061c",
    "signer": "0xE466248f391B5f99247E259e38d4f898225001e0",
    "userId": "260762194"
  }
}