{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138985242",
    "entityType": "User",
    "nonce": "0x7fab3cbc851bff09da48ffe884f2d9e7593c5bd07e395b8e8e88f999a0263a65",
    "signature": "0x0ec274a9949bf33ebfec2f87a744225081bcb3120ba7a93ee6aa30f52a0b5c1744a2428c3584d5541bf70d2591e7b4e730901a94e7c6f2409588346ad5321cae1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}