{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "568518925",
    "entityType": "User",
    "nonce": "0xd4952c4aa50fb83973d7a017628dbdf3fc4780158ed18d0f75d59c81b9a1758d",
    "signature": "0xaa91eeffc525c912e092248cdb14290ae5b2d9303d176c671395f15ac91f4cef424278488248e314cc0b7a3217c498e2e3037bf22f3da671ba34426edb0b36d21b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}