{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2",
    "entityType": "User",
    "nonce": "0xa2d5ad9ba50ebb5e16d208456f0908df0cc4d5e18e8c722d6fc60fb487cdb962",
    "signature": "0x1c103f3fdb6449d6e11e5ea74004d5b4541964c5a01b04674f31d29af2fccab07bbcf00b06955d953560a50106adda62ce0214a5bb937d3b07aa48822e5b0e551c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}