{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906184213",
    "entityType": "User",
    "nonce": "0x2fd3172b593a14a756b1d82f20ad73a92ad4c871802eb6dc74e55b0645ea8af8",
    "signature": "0xaf01707827fa2dcacac62f2f24ee85e852aa2d757aeb967c744daef503a09cc009fcb8c29d8b0f978d5f40f7f550bdf1ea873d1d192b471dfe44abe0a43edfe91b",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}