{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105879",
    "entityType": "User",
    "nonce": "0x2221503d3a9e6aca50328ffcd68cdf14e320bab4183dfe4ab9856224be8c6203",
    "signature": "0x9e30d05ab5186c5788f09d6360701e396388be433763a8c1f0b29da97a6515430e35765f737bb9309d3dcc95c019e3de5b77191ecd7da707965f808f1c450d151c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}