{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "302595",
    "entityType": "User",
    "nonce": "0x081a511486d6149f17660e61643210a76a29ac3a3ac2f90dc4133b0748b1187d",
    "signature": "0x74903018d9fe5309a1c67ec6292d28ac74a9252e9d3534c94e467d610d995eb45e01b0c58b390801f78cc91347d35bea1d16c3e3ab86006f8c98c369bcd569761b",
    "signer": "0x3e16afFf69eC32202c1B755Ad919C7aA325B7aBE",
    "userId": "902811065"
  }
}