{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77173",
    "entityType": "User",
    "nonce": "0xdcf835c8ba3fd03e1cc12987aa3f5eb1321b8df9e102239ea4eb870c30922ff4",
    "signature": "0xd0d59f3e393ec79c1040f5c31dd497971b332d1c410ff0eae3de827d135e0fdc23bdfc7d406d136571ca2983f21191dcaf2c5312be5f34420addfac4e558c86b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}