{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8819",
    "entityType": "User",
    "nonce": "0x8069436f8db3d8d689497c0c0a22930c6e2c5a789579d3f473550e9daa5d57f3",
    "signature": "0xf52c781552d8f64a9f74d8f0a9055f35c69125a2bedfaea5158d10699878717f14a3d2a822428558eb99e5081c9b697c820224f840be132d26293f15a81296881c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}