{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x10af0a9260a56c10c092b6b40f1a028dbf890c82ac5747ac19f17841b3aefa53",
    "signature": "0x41e872ff067e15fa6949da6d6bde9db18f325ccc0b296514b7fb41a30ed8bb886b1910836f0a534c1a8eabd52bc491b62335a978a7e641b6f4fa3f8fc0e1029d1c",
    "signer": "0x6E8Af7Cd3AA4a0117eD165a57738d0E2167aBd40",
    "userId": "618341133"
  }
}