{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0db1a45c92f4a53b995328b0f196df6d87fdd1a4c2a64f9ddc4d8e748f035f70",
    "signature": "0x7b4c8bd171fd6dbf46c901ffa133ff1766f5234fbba97a34cf794c94b93010615633f31847a1d166d6caa808ca448acc4991dd4191b9902bb27de5242c942bcd1b",
    "signer": "0x89034330Fac57Ba4216Ba75208827F30E8dB95Fd",
    "userId": "335616726"
  }
}