{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "940003920",
    "entityType": "User",
    "nonce": "0x78b20f8eb34c02ae28878f4344a60fdf97ec2d2f9b4f00d69f497acc043df69b",
    "signature": "0x90492afe398d0fcc567b07577b557de61ab822701d3b11c9ea02ee98ff37277d74b8f95b484fbfc108dd56f35f7203c1cb02cf7399c62922b0aa9daf42629b961c",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}