{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "976921855",
    "entityType": "User",
    "nonce": "0xbe71f7e1c9b482d07cc7dc3132e6ebd72fb27f02a06e1d26d5c55f207ce18196",
    "signature": "0xa9e6a06e08123a805bd03d91c94aaf19c00144bc24e11a0165c7ce3fb10e97880f26cf0ec41d907dce324aeec89bde27be57c93d45b7b1342921c4bb23ee668e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}