{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16411799",
    "entityType": "User",
    "nonce": "0x44af0775cc6657940c6d74830f8be180308a91378941adaa2f5b7b85a782cecb",
    "signature": "0xbed84eed8cdeba09cafa7a4aedf6f1a170bf5aa42303fc276db698b60dc5012e3293d85d04d5e76ebc1a20de246a9c89f3542e0dea0af349be58a84c2d595a761b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}