{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9a5010fbd97cf5e0b1c28f3ae623ad6297edfa651afd13fd972a471d783bf727",
    "signature": "0xa34f73758dbd947f3c5ce7bbb7e094f0aa9f8ab2a7dd187138fcd5f0d0301cea395636b34a69ddda0189304bbb2deabe1c4d2c8e839933dce864c5317c8f08a21c",
    "signer": "0x1d213Bf7d1685E6C9e8589d81f7Fe642877f8EA4",
    "userId": "707945177"
  }
}