{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcd342b791027ea57f3d5e42ebc75f4eeefc10a8c7fb2592a1893ac297259f67b",
    "signature": "0x6b8b15d39ce0fed6900a09bb46803cc5485772f4b39d2efa992e751fdfddf3b572cda89f944c71cbc16c6a75048abee1c1164c07a5cb3a0b7fd6f87abd060bb11b",
    "signer": "0x1B3B5deE562Cca42D1Ba5E17c988Bc4ddaf24094",
    "userId": "607917902"
  }
}