{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x5d20ef6b3756d084ed08504d72de180f29070d314894f220fc3d63e472e4f82e",
    "signature": "0xd92e06038a78126a410d9a151c77ea87bc72439cd4018f1720dae4680f2d938e541a39970492bda3d51dec9119d420fa9e02b250ce54dfe054e123f869bcea041b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}