{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "219476",
    "entityType": "User",
    "nonce": "0x1a294f68b548e76757bcf3063ae63fe6e9d1757dedb5d1e1f7f95c93c120f30c",
    "signature": "0xdf537c2d351cd0bf164cf13f56be54cac0c3ed8f8026ded47a747d31821a12610a979b22abb52612591573a4cfdc36c410f561806a3c124a79676cbd7de893f91c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}