{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "978785085",
    "entityType": "User",
    "nonce": "0x7deffaca699c2f92c9a00a563f6ed47d1eb00855b62a637122b4319e5b381569",
    "signature": "0x3521d96135382be979e41443e3ac9c8ca0a3e9181575978b971a2d61b44412b61b1e96d3691d4df6d7edc7974d8b8b40a3d3865a7cf22b94d6fdd60776d9cfcc1b",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}