{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "133752",
    "entityType": "User",
    "nonce": "0x419582b4aa70aaf284983aefa44dcc93e2666ec739f25561b4eec632aaff41d1",
    "signature": "0x88bb9edc79e664ba203a89f28585e133c0c810ca0cc22e44617faa8f583cc2ce35282510bc5194a4b6bdf72b6fca01e8ec110078745e06569c38fe20c82590741c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}