{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "868248368",
    "entityType": "User",
    "nonce": "0x295b8070daa0122451a0343a21176b86afea1efed880d94f2c9ad8c0878f61ea",
    "signature": "0xd35b4738b30ac8ff8c511342272b91c5bc1f794e2ab27a73cc4b2a02543f9cf463a23a0ddaccbb7843bd47fab57eb24f9a834da9691487164cc1317877ead1a51b",
    "signer": "0xd9bA17330fFb3Ea1356C5eC14971D9e1f2cb5200",
    "userId": "337125448"
  }
}