{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0xdc6aa465ba6f908fcccdbd0d41c589f0bbb38e917a7590992e847a8d8f0637b1",
    "signature": "0xbdec11b3b14f292fa0dbe14e3af0b454ae41a1030d8d5db677959d42963815592cfe360d47e5cb69cba0b36ea97b87b3505c2400e5e05b68c373759de3ff88b61c",
    "signer": "0x38b82b1Cd46eCBa50DB7fB20B1FD260725058884",
    "userId": "672217540"
  }
}